fall down

be shown to be false or inadequate; collapse 显示不实或不足; 崩溃; 失败: The plan fell down because it proved to be too expensive. 这项计划因费用过高而告吹. fall down on sth (infml 口) fail to do sth properly or successfully 没有把某事做好: fall down on one's promises 未履行自己的诺言 * He fell down on the job. 他未能把这件工作做好.

faithful, faithfully, faithfulness, faithless, faithlessly, faithlessness, fake, faker, fakir, falcon, falconer, falconry, fall, fall apart, fall away, fall back, fall back on, fall behind, fall behind (sb/sth), fall by the wayside, fall for, fall for sb, fall guy, fall in, fall in love, fall in love (with), fall in love with, fall in love with sb., fall in with, fall into, fall into step, fall into sth, fall off, fall on one's knees, fall on/upon sb/sth, fall out, fall out of, fall over, fall over sb/sth, fall through,